2 # $Id: dirdeps-options.mk,v 1.9 2018/09/20 00:07:19 sjg Exp $
4 # @(#) Copyright (c) 2018, Simon J. Gerraty
6 # This file is provided in the hope that it will
7 # be of use. There is absolutely NO WARRANTY.
8 # Permission to copy, redistribute or otherwise
9 # use this file is hereby granted provided that
10 # the above copyright notice and this notice are
13 # Please send copies of changes and bug-fixes to:
19 # This makefile is used to deal with optional DIRDEPS.
21 # It is to be included by Makefile.depend.options in a
22 # directory which has DIRDEPS affected by optional features.
23 # Makefile.depend.options should set DIRDEPS_OPTIONS and
24 # may also set specific DIRDEPS.* for those options.
26 # If a Makefile.depend.options file exists, it will be included by
27 # dirdeps.mk and meta.autodep.mk
29 # We include local.dirdeps-options.mk which may also define DIRDEPS.*
32 # Thus a directory, that is affected by an option FOO would have
33 # a Makefile.depend.options that sets
34 # DIRDEPS_OPTIONS= FOO
35 # It can also set either/both of
38 # to whatever applies for that dir, or it can rely on globals
39 # set in local.dirdeps-options.mk
40 # Either way, we will .undef DIRDEPS.* when done.
42 # This should have been set by Makefile.depend.options
46 # pickup any DIRDEPS.* we need
47 .-include <local.dirdeps-options.mk>
49 .if ${.MAKE.LEVEL} == 0
50 # :U below avoids potential errors when we :=
51 .for o in ${DIRDEPS_OPTIONS:tu}
52 DIRDEPS += ${DIRDEPS.$o.${MK_$o:U}:U}
54 DIRDEPS := ${DIRDEPS:O:u}
55 # avoid cross contamination
56 .for o in ${DIRDEPS_OPTIONS:tu}
61 # whether options are enabled or not,
62 # we want to filter out the relevant DIRDEPS.*
63 # we should only be included by meta.autodep.mk
64 # if dependencies are to be updated
65 .for o in ${DIRDEPS_OPTIONS:tu}
66 .for d in ${DIRDEPS.$o.yes} ${DIRDEPS.$o.no}
67 .if exists(${SRCTOP}/$d)
68 GENDIRDEPS_FILTER += N$d*
69 .elif exists(${SRCTOP}/${d:R})
70 GENDIRDEPS_FILTER += N${d:R}*